No Speed Limit on Mars

It's a good thing there's no speed limit on Mars, because the next parachute to fly to the red planet deploys faster than you can legally drive on a California freeway! The chute is designed to slow the Mars Science Laboratory as it rockets through the Martian atmosphere at more than twice the speed of sound. Engineers recently tested two parachute packing techniques in the world's largest wind tunnel at NASA's Ames Research Center. They loaded each chute into a cannon and aimed it down the middle of the tunnel. They then fired the cannon -- horizontally -- at 85 mph and let the parachute fly! Finally, they looked for damage to line attachments and other parts. All four tests were successful. They are now reviewing a veritable "jet stream" of high-speed video data to select a final design.